First, an analogy: A computer is made of many components. They fall into 3 groups:

Memory or RAM:

Memory or RAM is your work bench. It is where the work gets done. The more memory you have, the more things you can do at the same time. Ram is measured in mega (mega= million) bytes.

CPU or Processor

Your CPU or Processor is your motor. The more powerful your motor, the faster you can get things done. Processor speed is measured in GHZ or giga (Giga= A million million) hertz.

Hard Drive

The Hard Drive is your file cabinet, the more data you can save for future use. Hard Drive space is measured in mb or mega (millions of) bytes.

See? Nothing mystical about those terms is there?

Now on to the Definitions.

Definitions

Adware Those unwanted ads that appear on your browser.

Bit A Single piece of data.

Byte A block of bits, usually 8 bits. An example of a byte would be a single letter as "A".

Browser The software that helps find what you are looking when you surf the internet.

Computer A high speed slowpoke. It does exactly what it is told. This is not necessarily what you want it to do.

CPU Central Processing Unit. This is the heart, engine, motor of your computer.

DVD+R A format used to burn a DVD. Usually not compatible with a DVD-R drive.

DVD-R A format used to burn a DVD. Usually not compatible with a DVD+R drive.

Firewall A vital device that can be either software or hardware that hides your computer from the outside world. Windows has a built in firewall.

Firewire A type of connection to a computer. Used for connecting a device such as a camcorder to a PC. It is also known as IEEE1394. Sony calls their version "I-link".

Floppy disk A type of storage media. Floppies are no longer popular due to the limited capacity and slow speed.

Gamer A person that uses a PC primarily for playing video games. It requires a fast PC and a high level graphics card.

GHZ Giga hertz. Abbreviated as ghz. This is the speed of a processor. A hertz is a cycle.

Gigabyte A billion (thousand million) bytes of data.

Why not classify them as input.processing and output components


Also this should be moved to the Computers thread,